HP ProLiant ML150

Troubleshooting
Preventive Maintenance Procedures
WARNING: Before removing the server cover, always disconnect the power cord and
unplug telephone cables. Disconnect telephone cables to avoid exposure to shock
hazard from telephone ringing voltages. Disconnect the power cord to avoid exposure
to high energy levels that may cause burns when parts are short-circuited by metal
objects, such as tools or jewelry.
Refer to the following table for preventive maintenance procedures used for the HP ProLiant
ML150 server. Be sure to turn off power to the server when cleaning it.
Components Time Frame Maintenance Procedure
Keyboard Regularly Dust with damp, lint-free cloth.
Monitor screen Regularly Use “HP Video Screen Cleaning Solution”
found in 92193M Master Clean Kit.
Mouse Regularly Refer to the mouse’s manual for mouse
maintenance procedures.
Tape drive heads Monthly Use “Magnetic Head Cleaning Solution” found
in the 92193M Master Clean Kit.
Cooling fans and grilles 6 Months Check cooling fan operation and clean the air
intake openings on the chassis by removing
any dust, lint, and other obstructions to airflow.
CAUTION: Do NOT use petroleum-based cleaners (such as lighter fluid or cleaners
containing benzene, trichlorethylene, ammonia, dilute ammonia, or acetone. These chemicals
could damage the keyboard’s plastic surfaces).
HP recommends the periodic cleaning of tape heads, capstans, and guides on HP tape drive
units and those products using high-density data cartridges and mini-data cartridges. These
maintenance procedures prolong tape and head life and helps reduce read/write errors due to
dust and oxide.
Troubleshooting
WARNING: Before removing a cover, always disconnect the AC power cords.
Disconnect them to avoid exposure to high energy levels that may cause burns when
parts are short-circuited by metal objects such as tools or jewelry. Disconnect the
telephone cables to avoid exposure to shock hazard from the telephone ringing
voltages.
WARNING: For any service activity requiring access to the system board or power
distributions board, power down the server and observe all safety precaustions.
4-2 HP ProLiant ML150 Server Operations and Maintenance Guide
HP CONFIDENTIAL Codename: Stone Soup Part Number: 343329-001 Last Saved On: 8/14/03 10:25 AM